Code No. C1361: M/C pressure SNSR.stuck/low gain
Code No. C1364: M/C pressure SNSR.malfunction

caution

If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C - Troubleshooting ).
Whenever ECU is replaced, ensure that the CAN bus lines are normal.
When the hydraulic unit assembly (integrated with ASTC-ECU) is replaced, always carry out the calibration of the steering wheel sensor and the G sensor (Refer to ).

OPERATION

ASTC-ECU incorporates the pressure sensor, and monitors the brake fluid pressure.

DIAGNOSIS CODE SET CONDITIONS

This diagnosis code will be set under the cases below:

Pressure sensor power supply voltage malfunction
Pressure sensor signal malfunction
Abnormal result of initial check performed when the power is supplied to ASTC-ECU.

PROBABLE CAUSES

Malfunction of the hydraulic unit assembly (integrated with ASTC-ECU)